7219280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 80

約数和(自身を含む): 17998848

約数和(自身を除く): 10779568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 71, 80, 82, 124, 142, 155, 164, 205, 248, 284, 310, 328, 355, 410, 496, 568, 620, 656, 710, 820, 1136, 1240, 1271, 1420, 1640, 2201, 2480, 2542, 2840, 2911, 3280, 4402, 5084, 5680, 5822, 6355, 8804, 10168, 11005, 11644, 12710, 14555, 17608, 20336, 22010, 23288, 25420, 29110, 35216, 44020, 46576, 50840, 58220, 88040, 90241, 101680, 116440, 176080, 180482, 232880, 360964, 451205, 721928, 902410, 1443856, 1804820, 3609640, 7219280]

約数ペア:

[(1, 7219280), (2, 3609640), (4, 1804820), (5, 1443856), (8, 902410), (10, 721928), (16, 451205), (20, 360964), (31, 232880), (40, 180482), (41, 176080), (62, 116440), (71, 101680), (80, 90241), (82, 88040), (124, 58220), (142, 50840), (155, 46576), (164, 44020), (205, 35216), (248, 29110), (284, 25420), (310, 23288), (328, 22010), (355, 20336), (410, 17608), (496, 14555), (568, 12710), (620, 11644), (656, 11005), (710, 10168), (820, 8804), (1136, 6355), (1240, 5822), (1271, 5680), (1420, 5084), (1640, 4402), (2201, 3280), (2480, 2911), (2542, 2840)]